The Caspian Sea is also classed as the world's largest lake.
52
Water is actually naturally blue.
48
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
476
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
There was once an undersea post office in the Bahamas.
241
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707